Testing of cleanroom purification equipment

What are the requirements for a qualified clean room?

1、The air supply of the clean room will not increase the pollution in the room.

2、The air supply volume is sufficient to control the pollution generated in the room.

3、The movement of indoor air can ensure that there is no high-concentration gathering area in the chamber.

4、The air in the clean room flows from the clean area to the poorly clean area, and the flow of contaminated air reaches a low level.

To know whether the clean room meets these requirements, we need to test its performance

1. Leak detection of filters: this is mainly done for the high-efficiency filters in the clean room, testing the outer frame of the equipment to ensure that suspended contaminants do not pass through.

2. Air supply and exhaust testing: this is necessary if we are using a turbulent clean room.

3. Isolation leak detection: the purpose of this test is to prove that suspended contaminants do not pass through the building materials into the clean room.

4. Indoor airflow control: the so-called airflow control test is mainly based on the airflow pattern of the clean room, if the clean room airflow is turbulent, it is necessary to prove that there is no airflow running short of the area; if it is a one-way flow clean room, it is necessary to test out the indoor air speed and direction is in line with the design requirements.

5. Airflow control between various areas: this is to prove that the correct direction of airflow movement between the various areas, that is, from the clean area to the poor cleanliness of the regional flow must be tested.

6. Suspended particle concentration and microbial concentration testing: If all the above tests are met, the particle concentration and microbial concentration can be measured later on, but this is not necessary.